C/C++经典算法精华整理（4）-位字段输出二进制数据

位字段可以把二进制数据处理为char进行简洁的处理

typedef struct

{

unsigned char ch1:1;

unsigned char ch2:1;

unsigned char ch3:1;

unsigned char ch4:1;

unsigned char ch5:1;

unsigned char ch6:1;

unsigned char ch7:1;

unsigned char ch8:1;

}bit;

void main()

{

printf("%d", sizeof(bit));//位字段的方式输出整数的二进制码

int num;

scanf("%d", &num);

bit *p = #

for (int i = 3; i >= 0;i--)

{

printf("%d%d%d%d %d%d%d%d ",

p[i].ch8,

p[i].ch7,

p[i].ch6,

p[i].ch5,

p[i].ch4,

p[i].ch3,

p[i].ch2,

p[i].ch1

);

}

system("pause");

}

字节分布:变量在内存，低字节低位，倒序排列